Collagen-peptide assay method
CA 2297555 A1 · Owner: Krane, Stephen M. · Inventors: Ju, Hsin-Shan J.; Leigh, Scott D.; Byrne, Michael H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention includes a method of determining the level of Type I collagen fragments in a biological fluid using an antibody which is immunospecific for an epitope contained in one of the following sequences: (1) Ala-Hyp-Gly-Asp- Arg-Gly-Glu-Hyp-Gly-Pro-Hyp-Gly-Pro-Ala or (2) Gly-Asn-Ser-Gly-Glu-Hyp-Gly-, Ala-Hyp under conditions effective to allow determination of the level of collagen fragments in the sample which contain the epitope. The method is useful for assessing the level of bone collagen degradation particularly in , humans. Also disclosed are antibodies and kits which can be used in the method.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 31, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.